In December 2014, as the pro-democracy “Umbrella Revolution” gripped Hong Kong, an anonymous 14-year-old protester achieved infamy after being arrested for using chalk to draw a pictures of flowers on the Lennon Wall. She became known as “Chalk Girl” and her detention, on suspicion of criminal damage, sparked an uproar. She was taken away from her father, who is hearing-impaired, and sent to a children’s home, preventing her from going to school, while a court considered charges against her. Amid a public outcry, she was released after two days and cleared of any wrongdoing.

Now 16, she’s speaking out, but still maintaining her anonymity. “Chalk Girl” sat down for a conversation in a documentary by filmmaker San San F Young that was released by The Guardian. As Chinese President Xi Jinping visited Hong Kong for the 20th anniversary of its return to Chinese rule, pro-democracy forces are girding for another another round protests. And the big decision for “Chalk Girl” is whether or not she should join the revolution. She “is torn between wanting to respect her family, who are concerned about the risks of her activism, and her determination to stand against Beijing’s interference.”